Photo: Optimus Prime Rides Grimlock in "Transformers: Age of Extinction"

After being rumored for some time, in September, producer Lorenzo di Bonaventura confirmed that Dinobots will appear in "Transformers: Age of Extinction." And today, we have our first look at the dinosaur robots.

The photo comes from a trade show and shows artwork of Optimus Prime riding Grimlock, which is a T-Rex autobot. It's a blurry photo, but will give you an idea of how big Grimlock will actually be. Check out the photo below.

"Transformers: Age of Extinction" is directed by Michael Bay and stars Mark Wahlberg, Nicola Peltz and Jack Reynor. It's set to hit theaters on June 27th, 2014.